As stated prior, I have a rather small wrist, ~ 16.5cm or ~ 6.5" + or - depending on the humidity.
Although I think the 39mm Royal Oak case fits me better, I could not and did not refuse getting a 15407ST in 41mm. The case does wear bigger although it also helps that the bracelet is a but beefier as well which makes up for the thin bracelet of the 15202ST.
Have a look at the photos and see for yourself.